a) The anteater is a primitive animal 5 the noun stands for the whole class of objects
b) Henry went to the library 4 the nouns describe unique objects
c) Robin couldn't cope with the last text 3 the noun has got a limiting attribute
d) They bought a new English-Russian dictionary. The dictionary is very expensive 2 the noun has already been used
e) The idiom was not easy to memorize 1 the noun is clear from the context or situation
f) They live in the north of England. 6 the noun describes the adverbial modifier of place